1. Alexander, D.C. (1986).The practice and management of industrial ergonomics. Englewood Cliffs, NJ: Prentice-Hall.
2. Armistead, C.G. (1985). Design of service operations. In C. Voss, C. Armistead, R. Johnston, & B. Morris (Eds.),Operations management in service industries and the public sector(pp. 51–80). New York: Wiley.
3. Cohen, J.A., Beck, L.T. & Getty, R.L. (1997). Gaining customer trust sans government standards. InAmerican Society for Quality Control Quality Congress Transactions(pp. 470–77). Milwaukee, WI: American Society for Quality Control.
4. Conti, T. (1993).Building total quality: A guide for management. New York: Chapman & Hall.
5. Crosby, P.B. (1979).Quality is free. New York: McGraw-Hill.